Section 5: Service Information
NetClock/GTP Instruction Manual
Page 5-3
interference presents a greater challenge due to higher output power, typically 2-
3 MW. Table 5-2 lists the potentially problem television stations and their
respective GPS harmonic.
CHANNEL HARMONIC
66 2
nd
23 3
rd
10 8
th
7 9
th
6 18
th
& 19
th
5 20
th
TABLE 5-2 TELEVISION STATIONS WITH GPS JAMMING POTENTIAL
FM radio stations, while lower in radiated power, can cause GPS jamming also.
Table 5-3 lists the potentially problem radio frequencies and their respective GPS
harmonic.
FREQUENCY HARMONIC
104.8 - 105.2
15
th
98.3 - 98.7
16
th
92.5 - 92.9
17
th
87.3 - 87.7
18
th
TABLE 5-3 FM RADIO FREQUENCIES WITH GPS JAMMING POTENTIAL
If relocating the antenna away from the interfering source does not solve the
problem or if relocation is not possible contact Spectracom Tech Support for
assistance.
